Browsing by Author "Fallick A.E."
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Browsing by Author "Fallick A.E."
Now showing items 1-14 of 14
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Melezhik V.A.; Grinenko L.N.; Fallick A.E. (1998)Two hundred and fifty-nine sulphide samples from black shales of the 'Productive' Formation belonging to the Palaeoproterozoic (2000 Ma) Petsamo Supergroup in the Kola region (NW Russia) have been analysed for their sulphur ...
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Melezhik V.A.; Gorokhov I.M.; Kuznetsov A.B.; Fallick A.E. (2001)
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Melezhik V.A.; Fallick A.E.; Medvedev P.V.; Makarikhin V.V. (1999)The Palaeoproterozoic positive excursion of δ 13Ccarb is now considered as three positive shifts of δ 13Ccarb separated by returns to 0‰, which all occurred between 2.40 and 2.06 Ma. This isotopic event is unique in terms ...
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Melezhik V.A.; Fallick A.E.; Smirnov Yu.P.; Yakovlev Yu.N. (2003)Samples from the Kola Superdeep Drillhole (12 262 m), a deep drillhole (1060 m), and from the surface, seaprated by only around 10 km, provided a unique opportunity for direct tracing of delta13C and delta18O changes through ...
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Melezhik V.A.; Fallick A.E.; Smirnov Y.P.; Yakovlev Y.N. (2003)Samples from the Kola Superdeep Drillhole (12 262 m), a deep drillhole (1060 m), and from the surface, seaprated by only around 10 km, provided a unique opportunity for direct tracing of delta(13)C and delta(18)O changes ...
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Melezhik V.A.; Fallick A.E.; Filippov M.M.; Larsen O. (1999)The ca. 2.0-Ga-old, 600-m-thick upper Zaonezhskaya Formation near Lake Onega, NW Russia, contains unusually high concentrations of Corg (up to 98%), averaging around 25%. The formation contains an estimated 25×1010 tonnes ...
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Wagner T.; Boyce A.J.; Fallick A.E. (2002)Laser sulfur combustion in the presence of O2 is the most commonly used method of in situ sulfur isotope analysis. Previous workers indicated that a small but reproducible fractionation of 34S/32S exists between the product ...
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Wagner T.; Boyce A.J.; Fallick A.E.; Jonsson E. (2004)Metamorphic remobilization of arsenopyrite-rich ores is a globally important process which can lead to significant concentrations of gold. In order to understand this and related processes, relations of sulphur isotopes ...
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Melezhik V.A.; Fallick A.E.; Medvedev P.V.; Makarikhin V.V. (2001)Magnesite forms a series of 1- to 15-m-thick beds within the ≈2·0 Ga (Palaeoproterozoic) Tulomozerskaya Formation, NW Fennoscandian Shield, Russia. Drillcore material together with natural exposures reveal that the 680-m-thick ...
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Melezhik V.A.; Fallick A.E. (2001)The ca. 2.2 Ga Kuetsjarvi Sedimentary Formation (KSF) of the Pechenga Greenstone Belt, the north-east Fennoscandian Shield, contains the oldest travertines so far reported in the literature. The travertine-hosting succession ...
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Jenkin G.R.T.; Rogers G.; Fallick A.E.; Farrow C.M. (1995)Various diffusion models can be applied to Rb-Sr systems in cooling rocks. It is argued that a closed-system diffusion-controlled model, involving local equilibrium along grain boundaries, is most appropriate for describing ...
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Melezhik V.A.; Fallick A.E.; Grillo S.M. (2004)This article reports the discovery of numerous subaerial exposure surfaces which occur in the ca. 2200 Ma Kuetsjärvi Sedimentary Formation (KSF) from the Pechenga Greenstone Belt, NE Fennoscandian Shield, Russia. The ...
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Waldron S.; Lansdown J.M.; Scott E.M.; Fallick A.E.; Hall A.J. (1999)We propose that the hydrogen isotope composition of recently produced microbial methane, δD(CH4), in sulfate-poor, shallow freshwater environments, is directly related to the hydrogen isotopic composition of the system ...
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Melezhik V.A.; Fallick A.E. (2003)The Palaeoproterozoic Kuetsjarvi Sedimentary Formation from the Pechenga Greenstone Belt, NW Russia, has been studied with the purpose of determining δ13Ccarb and δ18Ocarb values in various carbonate phases from genetically ...
Now showing items 1-14 of 14